In this paper, the methods of wavelet transform, correlation analysis, and harmonic analysis were used to analyze the variation characteristics of Xianyou well water level in each frequency band before and after being disturbed by well drilling and pumping in July 2017. The results showed that the serious well drilling and pumping disturbance has a significant influence on the full frequency of water level. After the interference tends to be stable, the intermediate frequency band basically recovers, but there are still many strong signals in the low frequency band, and the response capacity of M2 tidal strain is slightly decreased, indicating that the intermediate frequency band of Xianyou well water level is an effective monitoring band for stress change after being disturbed. The research methods and results of this paper can provide reference for interference analysis and anomaly extraction of water level data.
樊俊屹,刘春国,陶志刚.仙游井水位在2017年7月打井干扰前后频带响应的特性变化[J].地震工程学报,2021,43(5):1123-1128,1141. FAN Junyi, LIU Chunguo, TAO Zhigang. Frequency band response characteristics of Xianyou well waterlevel before and after drilling disturbance in July 2017[J]. China Earthquake Engineering Journal,2021,43(5):1123-1128,1141.复制